AUTOMOTIVE RELAYS
EN2 SERIES
FEATURES
• Twin relay for motor and solenoid reversible control
• 30% less relay space than conventional two relays
• Contact switching current of 35 A max.
• High performance and productivity by unique symmetrical
structure
• Flux tight housing
• Delivered in stick-tube for automatic insertion machine
• Washable type available
PART NUMBERS AND COIL RATINGS
Part Number
H bridge
Type
EN2-1N1S
EN2-1N2S
EN2-2N3S
EN2-2N4S
EN2-3N4S
EN2-3N5S
Separate
Type
EN2-1N1ST
EN2-1N2ST
EN2-2N3ST
EN2-2N4ST
EN2-3N4ST
EN2-3N5ST
Nominal
Voltage
(Vdc)
12
12
12
12
12
12
Coil
Resistance
(Ω±10%)
125
125
180
180
225
225
Nominal
Current
(mA)
96.0
96.0
67.0
67.0
53.0
53.0
Must Operate
Voltage
(Vdc)
6.5
7.0
7.5
8.0
8.0
8.5
Must Release
Voltage
(Vdc)
0.6
0.6
0.6
0.6
0.9
0.9
At 20°C (68°F)
Nominal
Operate Power
(W)
1.15
1.15
0.8
0.8
0.64
0.64
PART NUMBER SYSTEM
EN2-B1N1ST
Type
NiI : Standard type
B : High current type
1 : 125
Ω ±
10 %
2 : 180
Ω ±
10 %
3 : 225
Ω ±
10 %
N : Silver oxide complex alloy type I
G : Silver oxide complex alloy type II
Carrying Current Capacity
Coil Resistance
(at 20
°C)
Contact Material
Wiring
Enclosure
Must Operate Voltage
(at 20
°C)
NiI : H bridge type
T : Separate type
NiI : Unsealed
S : Sealed
1 : 6.5 V
2 : 7.0 V
3 : 7.5 V
4 : 8.0 V
5 : 8.5 V
Figure 1 Contact Resistance*
• H Bridge (rout A)
• H Bridge (rout B)
A
B
A
B
• Separate (N/C)
• Separate (N/O)
2
AUTOMOTIVE RELAYS
DIMENSIONS
mm (inch)
[H Bridge Type]
33.0
±
0.5
(1.3)
0.6(0.02)
16.5
±
0.5
(0.65)
[Separate (T) Type]
16.0
±
0.5
(0.63)
33.0
±
0.5
(1.3)
0.6(0.02)
16.5
±
0.5
(0.65)
*3.8
+1.0
–0.5
(0.15)
2
1
16.0
±
0.5
(0.63)
5.45(0.21)
5.45 (0.21)
6.4 (0.25)
2.7
(0.11)
3.1
(0.12)
5.45 (0.21)
14.1
(0.56)
10.75 (0.42)
5.75 (0.23)
*3.8
(0.15)
+1.0
–0.5
*2-0.5
×
1.1(0.02
×
0.04)
2.7
(0.11)
5.45 (0.21)
6.4 (0.25)
14.1
(0.56)
10.75 (0.42)
5.75 (0.23)
*4-0.5
×
1.1(0.02
×
0.04)
6.4 (0.25)
3 9
4
10
5 6
8
7
3.1
(0.12)
2.7
(0.11)
(0.23) 5.75
(0.42) 10.75
(0.56)
14.1
3.1
(0.12)
2.7
(0.11)
*2-1.3
×
1.3 (0.05
×
0.05)
*4-
φ
0.6 (
φ
0.02)
(0.23) 5.75
(0.42) 10.75
(0.56)
14.1
* After soldering
*2-1.3
×
1.3 (0.05
×
0.05)
*4-
φ
0.6 (
φ
0.02)
PCB PAD LAYOUT and SCHEMATICS
(bottom view) mm (inch)
[H Bridge Type]
+0.1
4-
φ
1.1
−0
(
φ
0.043)
+0.1
2-
φ
1.5
−0
(
φ
0.059)
2
1
3
4
8
+0.1
2-
φ
1.9
−0
(
φ
0.075)
5 6
(Side A)
7
+0.1
2-
φ
1.9
−0
(
φ
0.075)
(Unit A)
+0.1
4-
φ
1.1
−0
(
φ
0.043)
[Separate (T) Type]
+0.1
4-
φ
1.5
−0
(
φ
0.059)
(Side B)
(Unit B)
SPECIFICATIONS
Items
Contact Form
Contact Material
Contact Resistance
(*figure 1)
Specification
EN2-(Standard)
1 Form c
×
2 (H Bridge Type or Separate Type)
Silver oxide complex alloy (Special types available)
H Bridge (rout A): 8.1 mΩ typ.
H Bridge (rout B): 7.8 mΩ typ.
Separate (N/C): 3.9 mΩ typ.
(measured by voltage drop at 6 Vdc, 7A) Separate (N/O): 3.9 mΩ typ.
Contact Switching Voltage
16 Vdc max. 5 Vdc min.
Contact Switching Current
Contact Carrying Current H Bridge
(2 minutes max.)
Separate
Operate Time
Release Time
Nominal Operate Power
Insulation Resistance
Breakdown Voltage
Shock Resistance
Vibration Resistance
Ambient Temperature
Coil Temperature Rise
Life Expectancy
Weight
35A max. (at 16 Vdc) 1 A min.
25A (12Vdc, 20°C)
20A (12Vdc, 85°C)
30A (12Vdc, 20°C)
25A (12Vdc, 85°C)
Approx. 5 ms (at 12 Vdc)
Approx. 7 ms (at 12 Vdc), with diode
0.64 W/0.8 W/1.15 W (at 12 Vdc)
100 MΩ min. at 500 Vdc, Initial
500 Vac min. for 1 minute, Initial
98 m/s
2
min. (misoperating)
10 to 300 Hz, 43 m/s
2
min. (misoperating)
–40°C to +85°C (–40°F to +185°F)
50°C/W (Contact Carrying Current 0 A)
1
×
10
6
operations
1
×
10
5
operations (at 14 Vdc, Motor Load 30 A/7 A)
Approx. 18 g
At 20°C (68°F)
EN2-B (High Current)
H Bridge (rout A): 4.9 mΩ typ.
H Bridge (rout B): 4.6 mΩ typ.
Separate (N/C): 2.3 mΩ typ.
Separate (N/O): 2.3 mΩ typ.
35A (12Vdc, 20°C)
30A (12Vdc, 85°C)
40A (12Vdc, 20°C)
35A (12Vdc, 85°C)
Mechanical
Electrical
3
AUTOMOTIVE RELAYS
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for any errors which may appear in this document.
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other intellectual property rights of third parties by or arising from use of a device described herein
or any other liability arising from use of such device. No license, either express, implied or
otherwise, is granted under any patents, copyrights or other intellectual property rights of NEC
/TOKIN Corporation or others.
While NEC/TOKIN Corporation has been making continuous effort to enhance the reliability of its
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customers must incorporate sufficient safety measures in its design, such as redundancy,fire-
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quality grades:
"Standard," "Special," and "Specific". The Specific quality grade applies only to devices
developed based on a customer designated "quality assurance program" for a specific
a p p l i c a t i o n . T h e r e c o m m e n d e d applications of a device depend on its quality grade, as indicated
below. Customers must check the quality grade of each device before using it in a particular
application.
Standard: Computers, office equipment, communications equipment, test and measurement
equipment, audio and visual equipment, home electronic appliances, machine tools,
personal electronic equipment and industrial robots
Special:
Transportation equipment (automobiles, trains, ships, etc.), traffic control systems,
anti-disaster systems, anti-crime systems, safety equipment and medical
e q u i p m e n t ( n o t specifically designed for life support)
Specific: Aircrafts, aerospace equipment, submersible repeaters, nuclear reactor control
s y s t e m s , l i f e support systems or medical equipment for life support, etc.
The quality grade of NEC/TOKIN devices is "Standard" unless otherwise specified in NEC/TOKIN’s
Data Sheets or Data Books. If customers intend to use NEC/TOKIN devices for applications other
than those specified for Standard quality grade, they should contact an NEC/TOKIN sales representative
in advance.
(Note)
(1) "NEC/TOKIN" as used in this statement means NEC/TOKIN Corporation and also includes
its majority-owned subsidiaries.
( 2 ) "NEC/TOKIN electronic component products" means any electronic component product developed
or manufactured by or for NEC/TOKIN (as defined above).
DE0202
Embedded System
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